Merge branch 'create-merge-request' into 'master'

Add Create Merge Request buttons to commits page and push event.

Commits page:

![Screen_Shot_2015-05-09_at_22.27.09](https://gitlab.com/gitlab-org/gitlab-ce/uploads/f77c2e47f768b2fc132de6e3a2a0323e/Screen_Shot_2015-05-09_at_22.27.09.png)

Branches page:

![Screen_Shot_2015-05-09_at_22.55.24](https://gitlab.com/gitlab-org/gitlab-ce/uploads/b0a6374f5c5d830ef19de9694e603c8f/Screen_Shot_2015-05-09_at_22.55.24.png)

Push event: (Only for new branches, and only shown to the pushing user)

![Screen_Shot_2015-05-09_at_22.27.21](https://gitlab.com/gitlab-org/gitlab-ce/uploads/989c9cb66ee03d09b96809452749d2b8/Screen_Shot_2015-05-09_at_22.27.21.png)

Push event with multiple commits and a Compare link:

![Screen_Shot_2015-05-09_at_22.28.01](https://gitlab.com/gitlab-org/gitlab-ce/uploads/a70c718e559f69177f9341c0af92707c/Screen_Shot_2015-05-09_at_22.28.01.png)

See merge request !632

9 files changed, 52 insertions, 29 deletions

diff --git a/CHANGELOG b/CHANGELOG
index 57567728b49..5c4634fb151 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -50,6 +50,7 @@ v 7.11.0 (unreleased)
   - Add footnotes support to Markdown (Guillaume Delbergue)
   - Add current_sign_in_at to UserFull REST api.
   - Make Sidekiq MemoryKiller shutdown signal configurable
+  - Add "Create Merge Request" buttons to commits and branches pages and push event.
 
 v 7.10.2
   - Fix CI links on MR page
diff --git a/app/controllers/projects/compare_controller.rb b/app/controllers/projects/compare_controller.rb
index 7c20b81c0b1..c5f085c236f 100644
--- a/app/controllers/projects/compare_controller.rb
+++ b/app/controllers/projects/compare_controller.rb
@@ -6,11 +6,12 @@ class Projects::CompareController < Projects::ApplicationController
   before_action :authorize_download_code!
 
   def index
+    @ref = Addressable::URI.unescape(params[:to])
   end
 
   def show
     base_ref = Addressable::URI.unescape(params[:from])
-    head_ref = Addressable::URI.unescape(params[:to])
+    @ref = head_ref = Addressable::URI.unescape(params[:to])
 
     compare_result = CompareService.new.execute(
       current_user,
diff --git a/app/helpers/compare_helper.rb b/app/helpers/compare_helper.rb
index 01847c6b807..f1dc906cab4 100644
--- a/app/helpers/compare_helper.rb
+++ b/app/helpers/compare_helper.rb
@@ -1,21 +1,20 @@
 module CompareHelper
-  def compare_to_mr_button?
-    @project.merge_requests_enabled &&
-      params[:from].present? &&
-      params[:to].present? &&
-      @repository.branch_names.include?(params[:from]) &&
-      @repository.branch_names.include?(params[:to]) &&
-      params[:from] != params[:to] &&
-      !@refs_are_same
+  def create_mr_button?(from = params[:from], to = params[:to], project = @project)
+    from.present? &&
+      to.present? &&
+      from != to &&
+      project.merge_requests_enabled &&
+      project.repository.branch_names.include?(from) &&
+      project.repository.branch_names.include?(to)
   end
 
-  def compare_mr_path
+  def create_mr_path(from = params[:from], to = params[:to], project = @project)
     new_namespace_project_merge_request_path(
-      @project.namespace,
-      @project,
+      project.namespace,
+      project,
       merge_request: {
-        source_branch: params[:to],
-        target_branch: params[:from]
+        source_branch: to,
+        target_branch: from
       }
     )
   end
diff --git a/app/views/events/event/_push.html.haml b/app/views/events/event/_push.html.haml
index 60d7978b13f..1da702be384 100644
--- a/app/views/events/event/_push.html.haml
+++ b/app/views/events/event/_push.html.haml
@@ -17,15 +17,27 @@
       - few_commits.each do |commit|
         = render "events/commit", commit: commit, project: project
 
+      - create_mr = current_user == event.author && event.new_ref? && create_mr_button?(event.project.default_branch, event.ref_name, event.project)
       - if event.commits_count > 1
         %li.commits-stat
           - if event.commits_count > 2
             %span ... and #{event.commits_count - 2} more commits.
+
           - if event.md_ref?
             - from = event.commit_from
             - from_label = truncate_sha(from)
           - else
             - from = event.project.default_branch
             - from_label = from
+
           = link_to namespace_project_compare_path(event.project.namespace, event.project, from: from, to: event.commit_to) do
-            %strong Compare &rarr; #{from_label}...#{truncate_sha(event.commit_to)}
+            Compare #{from_label}...#{truncate_sha(event.commit_to)}
+
+          - if create_mr
+            or
+            = link_to create_mr_path(event.project.default_branch, event.ref_name, event.project) do
+              create a merge request
+      - elsif create_mr
+        %li.commits-stat
+          = link_to create_mr_path(event.project.default_branch, event.ref_name, event.project) do
+            Create Merge Request
diff --git a/app/views/projects/branches/_branch.html.haml b/app/views/projects/branches/_branch.html.haml
index 4e7415be4aa..43412624da6 100644
--- a/app/views/projects/branches/_branch.html.haml
+++ b/app/views/projects/branches/_branch.html.haml
@@ -10,16 +10,19 @@
           %i.fa.fa-lock
           protected
     .pull-right
-      - if can?(current_user, :download_code, @project)
-        = render 'projects/repositories/download_archive', ref: branch.name, btn_class: 'btn-grouped btn-group-xs'
+      - if create_mr_button?(@repository.root_ref, branch.name)
+        = link_to create_mr_path(@repository.root_ref, branch.name), class: 'btn btn-grouped btn-xs' do
+          = icon('plus')
+          Merge Request
+
       - if branch.name != @repository.root_ref
         = link_to namespace_project_compare_index_path(@project.namespace, @project, from: @repository.root_ref, to: branch.name), class: 'btn btn-grouped btn-xs', method: :post, title: "Compare" do
-          %i.fa.fa-files-o
+          = icon("exchange")
           Compare
 
       - if can_remove_branch?(@project, branch.name)
         = link_to namespace_project_branch_path(@project.namespace, @project, branch.name), class: 'btn btn-grouped btn-xs btn-remove remove-row', method: :delete, data: { confirm: 'Removed branch cannot be restored. Are you sure?'}, remote: true do
-          %i.fa.fa-trash-o
+          = icon("trash-o")
 
   - if commit
     %ul.list-unstyled
diff --git a/app/views/projects/commits/_head.html.haml b/app/views/projects/commits/_head.html.haml
index a714f5f79e0..66101f3f0da 100644
--- a/app/views/projects/commits/_head.html.haml
+++ b/app/views/projects/commits/_head.html.haml
@@ -1,6 +1,6 @@
 %ul.nav.nav-tabs
   = nav_link(controller: [:commit, :commits]) do
-    = link_to namespace_project_commits_path(@project.namespace, @project, @repository.root_ref) do
+    = link_to namespace_project_commits_path(@project.namespace, @project, @ref || @repository.root_ref) do
       Commits
       %span.badge= number_with_precision(@repository.commit_count, precision: 0, delimiter: ',')
   = nav_link(controller: :compare) do
diff --git a/app/views/projects/commits/show.html.haml b/app/views/projects/commits/show.html.haml
index c8531b090a6..9682100a54c 100644
--- a/app/views/projects/commits/show.html.haml
+++ b/app/views/projects/commits/show.html.haml
@@ -8,11 +8,17 @@
 .tree-ref-holder
   = render 'shared/ref_switcher', destination: 'commits'
 
-- if current_user && current_user.private_token
-  .commits-feed-holder.hidden-xs.hidden-sm
-    = link_to namespace_project_commits_path(@project.namespace, @project, @ref, {format: :atom, private_token: current_user.private_token}), title: "Feed", class: 'btn' do
-      %i.fa.fa-rss
-      Commits feed
+.commits-feed-holder.hidden-xs.hidden-sm
+  - if create_mr_button?(@repository.root_ref, @ref)
+    = link_to create_mr_path(@repository.root_ref, @ref), class: 'btn btn-success' do
+      = icon('plus')
+      Create Merge Request
+
+  - if current_user && current_user.private_token
+    = link_to namespace_project_commits_path(@project.namespace, @project, @ref, {format: :atom, private_token: current_user.private_token}), title: "Feed", class: 'prepend-left-10 btn' do
+      = icon("rss")
+      Commits Feed
+
 
 %ul.breadcrumb.repo-breadcrumb
   = commits_breadcrumbs
diff --git a/app/views/projects/compare/_form.html.haml b/app/views/projects/compare/_form.html.haml
index dfb1dded9ea..a0e904cfd8b 100644
--- a/app/views/projects/compare/_form.html.haml
+++ b/app/views/projects/compare/_form.html.haml
@@ -13,9 +13,10 @@
         = text_field_tag :to, params[:to], class: "form-control"
     &nbsp;
     = button_tag "Compare", class: "btn btn-create commits-compare-btn"
-    - if compare_to_mr_button?
-      = link_to compare_mr_path, class: 'prepend-left-10 btn' do
-        %strong Make a merge request
+    - if create_mr_button?
+      = link_to create_mr_path, class: 'prepend-left-10 btn' do
+        = icon("plus")
+        Create Merge Request
 
 
 :javascript
diff --git a/features/steps/project/commits/commits.rb b/features/steps/project/commits/commits.rb
index 30b1934b363..c888e82e207 100644
--- a/features/steps/project/commits/commits.rb
+++ b/features/steps/project/commits/commits.rb
@@ -12,7 +12,7 @@ class Spinach::Features::ProjectCommits < Spinach::FeatureSteps
   end
 
   step 'I click atom feed link' do
-    click_link "Feed"
+    click_link "Commits Feed"
   end
 
   step 'I see commits atom feed' do